do not drink alcohol in excess with cialis. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long-term injury, seek immediate medical help for an erection lasting more than four hours. if you have any sudden decrease or loss in hearing or vision, or if you have any allergic reactions such as rash, hives, swelling of the lips, tongue or throat, or difficulty breathing or swallowing, stop taking cialis and get medical help right away. ask your doctor about cialis for daily use and a 30-tablet free trial. >>> welcome back to the "fast money halftime report." let's get a quick check of the markets. stocks are back near session highs. having their best rally thus far in this young month of december. dow has been up five straight days. if it closes up today it will be the best run for the dow since march. so it has been quite some time since we've been able to string together five straight up days for the 30 stocks in the dow. meantime, it's a critical period for amazon as the holiday shoppi